Update gems
Remake books and users relationships
Update gems
Fix social icons
Move layout choosing to application_controller
Fix social icons
Remove collaborators show view
Password resets edit view style tweaks
Remove collaboration model specs
List collaborators' emails in index view
Fix sessions_spec.rb
Fix user_flow_spec.rb
Fix books_controller specs
Fix text_spec
Remove collaborators_controller_spec, to be replaced by feature spec